Once your 2024 tax return is in the hands of the IRS, you may be tempted to clear out file cabinets and delete digital folders. But before reaching for the shredder or delete button, remember that some paperwork still has two important purposes: Protecting you if the IRS comes calling for an audit, and Helping you prove the tax basis of assets you’ll sell in the future. . Keep the return itself — indefinitely Your filed tax returns are the cornerstone of your records. But what about supporting records such as receipts and canceled checks? In general, except in cases of fraud or substantial understatement of income, the IRS can only assess tax within three years after the return for that year was filed (or three years after...